|
' 92 Soil Survey
<br /> vegetation is mainly annual grasses and (orbs. of the surface in small concave areas and commonly 3
<br /> Elevation is 250 to 380 feet. The average annual to 15 percent of the surface in convex areas. The native
<br /> precipitation is about 17 inches, the average annual air vegetation is mainly annual grasses and forbs.
<br /> temperature is about 60 degrees F, and the average Elevation is 160 to 350 feet. The average annual
<br /> ' frost-free period is about 260 days. precipitation is about 17 inches, the average annual air
<br /> Typically, the surface layer is yellowish red gravelly temperature is about 60 degrees F, and the average
<br /> loam about 9 inches thick. The subsoil is reddish brown frost-free period is about 260 days.
<br /> and yellowish red very gravelly clay loam about 9 Typically, the surface layer is yellowish red cobbly
<br /> ' inches thick. Light gray and brown, andesitic, tuffaceous loam about 9 inches thick. The subsoil is reddish brown
<br /> conglomerate is at a depth of 18 inches. In some areas and yellowish red very gravelly clay loam about 9
<br /> the surface layer is loam, cobbly loam, or very cobbly inches thick. Light gray and brown, andesitic, tuffaceous
<br /> ' loam. conglomerate is at a depth of 18 inches. In some areas
<br /> Included in this unit are small areas of Redding and the surface layer is loam, gravelly loam, or very cobbly
<br /> Toomes soils on terraces and soils that are very loam.
<br /> gravelly and moderately fine textured, have a hardpan Included in this unit are small areas of Keyes, Pentz,
<br /> ' at a depth of 10 to 30 inches, and are in landscape Redding, and Toomes soils on terraces and Lithic
<br /> positions similar to those of the Pardee soil. Also Xerorthents in convex positions. Also included, in
<br /> included are small areas of soils that are gravelly and landscape positions similar to those of the dominant
<br /> ' medium textured and have a hardpan at a depth of 12 Pardee soil, are small areas of soils that are very
<br /> to 36 inches. Included areas make up about 15 percent gravelly and medium textured and have a hardpan at a
<br /> of the total acreage. depth of 10 to 20 inches and small areas of Pardee
<br /> Permeability is moderately slow in the Pardee soil. soils that have slopes of 0 to 3 or 15 to 25 percent.
<br /> ' Available water capacity is very low. The effective Included areas make up about 15 percent of the total
<br /> rooting depth is limited by the bedrock at a depth of 10 acreage.
<br /> to 20 inches. Runoff is slow, and the hazard of water Permeability is moderately slow in the Pardee soil.
<br /> erosion is slight. Available water capacity is very low. The effective
<br /> Most areas are used for livestock grazing. This unit rooting depth is limited by the bedrock at a depth of 10
<br /> may provide wetland functions and values. These to 20 inches. Runoff is medium, and the hazard of
<br /> should be considered in plans for enhancement of water erosion is slight or moderate.
<br /> ' wildlife habitat or land use conversion. This unit is used mainly for livestock grazing. General
<br /> Where this unit is used for livestock grazing, general management considerations include the very low
<br /> management considerations include the very low available water capacity, the limited depth, the number
<br /> ' available water capacity, the limited depth, the number of coarse fragments on the surface, and the hazard of
<br /> of coarse fragments on the surface in concave areas, erosion. The characteristic plant community is mainly
<br /> and saturated soil conditions in concave areas following soft chess, wild oat, (oxtail fescue, and filaree. The very
<br /> rainy periods. The characteristic plant community is low available water capacity limits the production of
<br /> mainly soft chess, wild oat, foxtail fescue, and filaree. desirable forage plants. Fencing is difficult because of
<br /> The very low available water capacity limits the the depth to bedrock. Grazing should be controlled so
<br /> production of desirable forage plants. Fencing is difficult that desirable vegetation, such as soft chess, is
<br /> ' because of the depth to bedrock. Grazing should be maintained and enough vegetation is left standing to
<br /> delayed until the soil is firm enough to withstand protect the soil from erosion.
<br /> trampling by livestock and the more desirable forage This map unit is in capability subclass Vle
<br /> plants have had an opportunity to set seed. (MLRA-17), nonirrigated. It is in vegetative soil group G.
<br /> ' This map unit is in capability subclass Vls
<br /> (MLRA-17), nonirrigated. It is in vegetative soil group G. 204—Peltier mucky clay loam, partially drained, 0
<br /> to 2 percent slopes. This very deep, poorly drained,
<br /> ' 203—Pardee cobbly loam, 3 to 15 percent slopes, nearly level soil is on flood plains and deltas. It formed
<br /> This shallow, well drained, undulating to rolling soil is in hydrophytic plant remains derived from reeds and
<br /> on hills. It formed in cobbly and gravelly alluvium tules and alluvium derived from mixed rock sources.
<br /> derived from mixed sources and is underlain by Mottles in the profile indicate a poorly drained soil;
<br /> ' andesitic, tuffaceous conglomerate. Slopes are convex, however, drainage has been improved by levees and
<br /> and the landscape is characterized by hummocky reclamation projects. Elevation is 15 feet below sea
<br /> microrelief. Gravel and cobbles cover 15 to 50 percent level to 20 feet above. The average annual precipitation
<br />
|